400 watt MH cool tube

keico

keico

Well-Known Member
Ok so my bulbs came in today and I noticed that the MH bulb has a much wider diameter that the HPS.

Actually the diameter of the MH is 5"

Now I definitely plan to DIY a cool tube, because the premade ones are very expensive.

So where do you a find a glass tube with at least a 6" diameter that won't break your pocket

All the DIY cool tubes messages I have read talk about HPS.

What about MH 400 watt
 
scoregreen

scoregreen

Well-Known Member
ive actually found plexiglass style ones on ebay for...not too cheap -- but glass im not sure about.

and youre fine with the MH bulb -- its the concept of removing the heat, not amplifying the HPS output..you of course get into the pros and cons of MH and HPS, to which i side with HPS -- but regardless, the MH will function the same...

hope this helps
 
keico

keico

Well-Known Member
scoregreen said:
ive actually found plexiglass style ones on ebay for...not too cheap -- but glass im not sure about.

and youre fine with the MH bulb -- its the concept of removing the heat, not amplifying the HPS output..you of course get into the pros and cons of MH and HPS, to which i side with HPS -- but regardless, the MH will function the same...

hope this helps
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So let me get this straight are you saying to just grow with a HPs and forget about the MH
 
7th1der

7th1der

Well-Known Member
You can go to Michael's in the candle section and there is a glass tube thats pretty wide there. Maybe like 6 inches or so. Its only $7 and some change. Be careful because its not as thick as the pyrex ones and I broke one before I got it home. Than again.... I broke my first pyrex as well. lol

and check my sig for a simple cool tube design. I added an update to it a couple days ago, so you have 2 different ways to make it. Good Luck!
 
damonk420

damonk420

Well-Known Member
Yea you have to spend money to make money its all your chioce though personaly go to htgsuply.com and check out there killer deals on lights and cool tubes
 
keico

keico

Well-Known Member
relativeood said:
That is what you are doing retard.
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No need for name calling

I spent 30 dollars for these MH bulbs, and plan to use them

If I run out and just buy a MH bulb with a smaller diameter, then the ones I bought are wasted.

I asked for advice as to where to find a cool tube that can fit these 5" diameter bulbs
 
keico

keico

Well-Known Member
houstonblowskush said:
cool tube for 60 shipped that will fit your bulb!!


http://cgi.ebay.com/400-Watt-HPS-Metal-Halide-Light-Cool-Tube-Reflector_W0QQitemZ280321407472QQcmdZViewItemQQptZLH_DefaultDomain_0?hash=item280321407472&_trksid=p3286.c0.m14&_trkparms=72%3A1205|66%3A2|65%3A12|39%3A1|240%3A1318|301%3A0|293%3A1|294%3A50
Click to expand...

I appreciate the link, but the bulbs won't fit in that one

I already have one bookmarked thats 6" diameter

Just trying to find a more inexpensive way to DIY
 
keico

keico

Well-Known Member
And just for for everyone's info hortilux blue MH bulbs go for more than 100 dollars
 
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